and why wouldn't they work with clip ons?
when i was trying to figure out my setup it seemed that the extreme angle of the clipons wouldnt let the mirrors be useable,
and also i thought the mirrors would hit the tank at tight slow speed turns, making the horrid u-turn radius even worse. (mounted upsidedown at least)
plus with clipons the handlebars are so much lower, it would make the mirrors like knee-height upsidedown
i opened up my clipons a bit, so maybe they could work, id love to see it, if anyone has that setup. might convince me to change mirrors